Trailer side wall and floor structure



FIG. 1 is a side view of the environment of a trailer including the trailer side wall and floor structure showing my new design;

FIG. 2 is a side view of the trailer side wall and floor structure showing my new design;

FIG. 3 is a top view of the trailer side wall and floor structure showing my new design;

FIG. 4 is a bottom view of the trailer side wall and floor structure showing my new design; and,

FIG. 5 is an isometric view of the trailer side wall and floor structure showing my new design.

Broken lines are used to depict environment and to represent the boundary of the claimed design and do not form any part of the claimed design. 

The ornamental design for a trailer side wall and floor structure, as shown and described. 